Mobile unit



J. S. OECHSLE A I MoILE-UNIT Filed April 15. 1924 Patented Feb. 24, 1925.

UNITED STATES PATENT OFFICE.

JOSEPH S. OECHSLE, OF PHILAEELPHIA, PENNSYLVANIA, ASSIG-NOR TO METTALWELI) SERVICE CORPORATION, OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OE PENNSYLVANIA.

MOBILE UNIT.

Application led April 15, 1924. Serial No. 706,724.

T0 a-ZZ whom t 'may concern:

Be it known that I, JOSEPH S. OECHSLE, a citizen of the United States, residing at Philadelphia, in the c-ounty of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Mobile Units, of which the following is a specification.

This invention relates to portable power actuated apparatus, and more particularly to means for effecting a predetermined purpose, and it has for its primary object to provide what may be aptly termed an extension unit for attachment to standard types of tractors with but little trouble or the expenditure of much time and labor, Said extension unit serving to support means adapted to be directly operated by the tractor motor when not functioning for propulsive purposes.

Another object of this invention is to provide a mobile unit embodying the characteristics of compactness, ready mobility and adaptability for quick change for propulsion under its own power or stationary placement for the particular purpose had in use.

Other objects are to provide an improved form of supporting framework for the unitper se-which can be readily connected to, or detached from, a standard tractor, whereby repair and renewal of worn or damaged parts may be promptly accomplished.

Further ob) ecfts and attendant advantages, associated with this invention, will be referred to-or become apparent-from the following detailed *description of one practical en'ibodiment and assemblage thereof.

In the further disclosure of my invention reference will be had to the accompanying sheet of explanatory drawings, constitu-ting apart of this specification, and in which corresponding parts are designated by the same reference charac-ters in all the views.

Figure 1-is a side view illustrative of the adaptation of my invention as a complete mobile compresso-r unit for use in the metal welding industries.

Figure Qf-is a somewhat enlarged side view of the unit attachment-per se-in association with a fragmentary portion of the tractor shown in the preceding figure.

Figure B-is a plan view of the same; and,

Figure 4-is a detail showing of a supporting member hereinafter more fully described and taken approximately on the line 4 4: in the preceding figure.

In said drawings, the principal elements comprised in my novel mobile unit are shown with sufficient detail to enable the invention to be well understood by anyone but slightly conversant with the art, such minor parts, however, that do not constitute essentials thereof, being omitted for simplicity in illustration accordingly the drawings have been made more or less rdiagrammatic in character.

Referring more in detail to the several views a Fordson tractor-by way of exampleis comprehensively designated by the numeral 5, and from which I remove the usual traction wheels (not shown), drawbar, rear axle housing and differential closures, for purposes hereafter fully explainedv In accordance with my invention I construct a base or framework embracing spaced longitudinal I-beams 6, 6 which are rigidly secured in parallel relation at their forward and rear ends by means of cross ties 7, 7 res ectively; and a stirrup plate 8, said plate Ibeing conveniently welded in longitudinal alignment directly above the web 9 of the cross tie 7, which it will be seen is also of I-section. The cross ties 7, 7 are also welded at their ends to the webs of the longitudinals 6, 6. In like manner the lateral wing portions 10, l() of the stirrup plate 8 are welded transversely across the top flanges l1, llof the spaced longitudinals 6, 6. Thus it will be readily seen that the -parts 6, 6 7, 7 '-and 8, become, or are, incorporated into a rigid unit.

The Stirrup plate 8 it will be seen by Figure 4l is cut out to afford a semi-circular seat 12 having adjacent holes 13 adapted for registration with the bolt holes around the connecting flanges 14, 14: between the front and rear portions l5, 16 respectively of the tractor 5. It is particularly to be noted that the semi-circular seat l2 is of a dimension to snugly abut the shell of the rear portion 16 aforesaid, and that 'it is rigidly clamped to the flanges 14, 14 by means of bolts 17 as longer substitutes for those ordinarily employed to secure said flanges together. Furthermore, it will be noted that by virtue of the assemblage and welded connection between the parts 6, 6, 7 and 8 that the tractor body is securely braced and rigidly supper ed at avery vvulnerable 'po-int,` while its strength is considerably enhanced thereby.

At suitable locations, intermediate the ends of the longitudinals 6, 6, and in opposed relation l conveniently weldinglyconnect inwardly and upwardly inclined struts or brackets 18, 18 of appropriate section, to the free ends whereof are corre tration's.` It will of course, lie-clearly com-v prehended that the discs 19, 19 are arranged in parallelism with special relation to snugly-- accommodate the `rear axle housing20, with appropriate packing to ensure tight joints thereat:

Journaledin suitable Abearings `21., transversely of the longitudinals 6, 6 l mount a rear axle 22-towhich the traction-wheels 23, 23 are secured in vany of the vwell known ways; Aand it is observable in connection therewith that my novel mobile unit is thereby afforded an extendedwheel base whereby increased stability for said unit is ensured. The rear axleis adapted for rotation-by means of a bevel gear 24: thereon in Vmesh with a similar gear 25 at the en'd'of a counter shaft 26, journaled in spaced bearingsp27, 2T conveniently attached toithe `adjacent longitudinal 6. This counter shaft 26is in turn provided with ya toothed wheel 28 in mesh with a second toothed wheel 29' 'splined on the drive shaft '30, which ispreferably of the type described in my prior application for patenttiled the 29th day of August, 1923, under Serial Number 659,897, and it is adapted for ositive drive by the tractor transmission. baid shaft 26 is alsofitted with an appropriate clutch 31 affording a direct drive for the compressor 82 adapted to replenish the storage tank 33. Thefy wheelrof the compressor 32 is indicated at 34' while a pipe 'affor'ds conduit con-nection between said compressor and the storage tank 33.

To afford a simple andetficient coupling connection between the'drive shaft 30 and counter shaft 26, when itis necessary that the unit beA traveled under its own power, l make use of a clutch or' grooved collar '36 integral with the toothed wheel 28, feathered on said counter shaft, and' shifter 37, fulcrumed at 38, to one of the bearings 27, and movable by means of a hand lever 39^in any of the' well known ways. `Thus it will be readily understood that the toothed wheel 28 'can be easily moved from and intomesh withv the wheel 29 whereby the rearaxle Ais connected up for propnlsive purposes or disconnected when the unit is in service respectively. 1When the parts just described are opmaa/isa eratively connected it will be obvious that the complete `unit may be traveled 'under its own power and guided by the customary steering wheel l0; and when so operated it will be apparent that the compressor `32 is disconnected by releasing the clutch 31.

From the foregoing-it will beclearly evident that by my invention I have provided a mobile unit capable of accomplishing all the purposes had in'view, while the manner of attaching the driven instrumentalities to a standard tractor, or disconnecting same for replacement by other desired means than that 4fnieciiied herein, by Vway of example only,,needs no further explanation. Additional Vfacilities or equipment may, obvi ously, bel included in and operatedl by the tractor 5, and employed with ease and facilityA under all normal service conditions.

The entire unit is such that the `several component 'parts are capable of ready assembly or disconnection for inspection, repairor adjustment without expenditure of much time and labor, while a positive drive is absolutely maintained. Furthermore Vthe supporting frame-work is of a characterand design to withstand great vibration vwhilst ensuring rigidity ,heretofore unattainable. Y

ln conclusion, l wish it clearly understood that the particular details of construction hereinbefore set forth, as well as theyspecific type. of unit illustrated and described is lby way of example onlyseeing that it is the primary intent and purpose of my invention to provide a mobile attaching unit for conneetion to any standard type of tractor irh respective of its-service, therefore thel right is reserved to` make allv such reasonable changes asfairlfy lie within the scope of the subjoined claims.

Having vthus described my invention, I claim 1. The combinationwith a tractor offan extension' attachment adaptedI for connection to the body andA rear axle housing closures thereof, said attachment comp-rising spaced longitudinals and integrally connected transverse ties, one of which is fashioned to afford a 'stirrup support adapted tobecoupled to thef tractor bodyr flanges, and opposed angu* larly braced and integrallyconnected paral- -lel discs for coupling to the rear axle housings. y

2. The'combination with a tractor of an extension attachmentadapted jfor connectionto thefbody andrearaxle housing'closures thereof, said attachment comprising spaced I-beams iand rigidly attached transverse I- section ties, theforwardone-ofjwhich affords a stirrup :supportlaligning with its web 'for 'connection 4to thel tractor abody flanges, and iangularly braced members for coupling closure to the rear axle housing.

8.o'l`he combination with a tractor vof an extension attachment adapted for connection to the body and rear axle housing closures thereof, said attachment comprising spaced I-beams and rigidly attached transverse I- section ties, the forward one of which affords a stirrup support aligning with its web for connection to the tractor body flanges, and opposed angularly braced parallel discs as coupling closures for the rear axle housing.

4. The combination with a tractor of an extension attachment adapted for connection to the body and rear axle housing closures thereof, said attachment comprising spaced I-beam longitudinals and weldingly attached transverse I-section ties, the forward one whereof affords a stirrup support aligning with the vertical web thereof, and angularly braced parallel disc closures for coupling to the rear axle housings, said longitudinals, ties, and disc closures constituting an integral unit.

5. The combination with a tractor of an extension attachment adapted for connection to the body and rear axle housing closures thereof, said attachment comprising spaced -beain longitudinals and weldingly attached transverse I-section ties, the forward one whereof affords a stirrup support aligning with the vertical web thereof, and angularly braced parallel disc closures for coupling to the rear axle housings, said longitudinals, ties, and disc closures constituting an integral unit, and bearings in the aforesaid longitudinal I-beams for a rear axle and traction wheels.

6. The combination with a tractor of an extension attachment adapted for connection to the body and rear axle housing closures thereof, said attachment comprising spaced I-beam longitudinale and weldingly attached transverse I-section ties, the forward one whereof affords a stirrup support aligning with the vertical web thereof, and angularly braced parallel disc closures for coupling to the rear axle housings, said longitudinale, ties, and disc closures constituting an integral unit, bearings in the aforesaid longitudinale I-beains for a rear axle and traction wheels, and clutch mecha nism whereby the tractor is adapted for mobile or unit operating purposes.

7. The combination with a tractor of an extension attachment adapted for connection to the body and rear axle housing closures thereof, said attachment comprising spaced -beam longitudinals and weldingly attached transverse I-section ties, the forward one whereof affords a stirrup support aligning with the vertical web thereof, and angularly braced parallel disc closures for coupling to the rear axle housings, said longitudinals, ties, and disc closures constituting an integral unit; a rear axle and traction wheels journaled in the aforesaid longitudinal I- beams, mechanism whereby the tractor' and attachment may be coupled up for propulsive purposes or disconnected, and meanswhen the said mechanism is disconnectedwhereby the tractor motor is adapted to directly drive a power act-uable stationary unit mounted on the attachment.

ln testimony whereof I aflix my signature this 10th day of April, 1924.

JOSEPH S. CECI-ISLE. 

